The John Adams Project, a joint operation of the ACLU and the National Association of Criminal Defense Lawyers, is offering support to military defense lawyers at Guantanamo, and they've launched a campaign to identify and expose CIA agents involved in torturing terror suspects. In order to figure out who was doing what to whom, they hired researchers to follow suspected spooks and snap their photos, which they then showed to terror suspects, line-up style:

[G]overnment investigators are now looking into whether the defense team went too far by allegedly showing the detainees the photos of CIA officers, in some cases surreptitiously taken outside their homes.